Error performance of optimum chip waveforms for DS-CDMA using wavelets

Author

Ozturk, Ertan ; Atkin, G.E.

Author_Institution

Dept. of Electr. & Comput. Eng., Illinois Inst. of Technol., Chicago, IL, USA

Volume

1

fYear

2001

fDate

37135

Abstract

We obtain optimum continuous time wavelet waveforms for chip pulse shaping waveforms of DS-CDMA signals. We first derive a performance measure for a DS-CDMA system, which is the normalized interference in terms of the chip waveform. Then, we design the optimum wavelet waveform to minimize the interference under a bandwidth constraint by utilizing the relationship between the wavelets and FIR filter banks. We evaluate the probability of error of the optimum wavelets, and they are compared with conventional chip waveforms such as the raised cosine and sinc

Keywords

FIR filters; channel bank filters; code division multiple access; error statistics; multiuser channels; optimisation; pulse shaping; radiofrequency interference; spread spectrum communication; wavelet transforms; DS-CDMA signals; DS-CDMA system; FIR filter banks; bandwidth constraint; chip pulse shaping waveforms; error performance; error probability; normalized interference; optimum chip waveforms; optimum continuous time wavelet waveforms; optimum wavelet waveform design; raised cosine waveform; sinc waveform; Bandwidth; Bit rate; Continuous wavelet transforms; Finite impulse response filter; Interference constraints; Multiaccess communication; Multiple access interference; Pulse shaping methods; Semiconductor device measurement; Wave functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2001 12th IEEE International Symposium on

Conference_Location

San Diego, CA

Print_ISBN

0-7803-7244-1

Type

conf

DOI

10.1109/PIMRC.2001.965452

Filename

965452